Finding the Third Proportional to 275,220.75 and 421,035.75
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Solution
The third proportional to 275,220.75 and 421,035.75 is: 644,105.15
Step by Step Solution
- Step 1: Write the proportion equation
275,220.75 : 421,035.75 = 421,035.75 : x - Step 2: Convert to fraction form
275,220.75/421,035.75 = 421,035.75/x - Step 3: Cross multiply
275,220.75x = 421,035.75 × 421,035.75 - Step 4: Simplify right side
275,220.75x = 177,271,102,778.06 - Step 5: Solve for x
x = 177,271,102,778.06/275,220.75 - Step 6: Final answer
x = 644,105.15
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Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.